Description
When using the smart-me integration with multiple apartment sub-meters
in a multi-family building (Mehrfamilienhaus), the Energy Dashboard
Sankey diagram incorrectly creates an intermediate node for one of the
sub-meters, routing all other consumers through it instead of showing
them as parallel consumers.
Setup
- Home Assistant (latest version)
- smart-me integration (cloud-based sub-meter system)
- 1x billing meter (Bilanzzähler) as grid reference
- 1x PV meter
- 5x apartment/consumer sub-meters:
- Apartment Ground Floor (EG)
- Apartment Upper Floor (OG)
- Apartment Attic (DG)
- Common electricity (Allgemeinstrom)
- EV charging stations (Wallboxen)
All devices configured under “Individual electric devices” in the
Energy Dashboard with no “Upstream device” set for any of them.
Expected behavior
All 5 consumer meters shown as parallel nodes:
PV ──┐
├──→ Home ──→ Apartment EG
Grid ┘ ──→ Apartment OG
──→ Apartment DG
──→ Common electricity
──→ EV charging
Actual behavior
One apartment meter (“1. Obergeschoss / OG”) appears as an
intermediate node, with all other consumers incorrectly routed
through it:
PV ──┐
├──→ Home ──→ 1. Obergeschoss ──→ Apartment EG
Grid ┘ ──→ Apartment DG
──→ Common electricity
──→ EV charging
Additional context
- “Upstream device” field is empty for all configured devices
- The power sensors use the smart-me internal device hierarchy
(Eingangsbereich → sub-device), which HA may interpret as a
physical hierarchy - All kWh values and other dashboard views are correct –
this is purely a Sankey visualization issue - The issue affects multi-family building setups with multiple
sub-meters from the same integration
Workaround
None found. Removing the power (W) sensor from the device
configuration does not resolve the issue.
